chelating resin

chelating resin

[′ke‚lād·iŋ ′rez·ən]
(organic chemistry)
Any of the ion-exchange resins with unusually high selectivity for specific cations; for example, phenol-formaldehyde resin with 8-quinolinol replacing part of the phenol, particularly selective for copper, nickel, cobalt, and iron(III).
References in periodicals archive ?
Synthesis, characterization and analytical applications of chelating resin containing orcinol.
O ne method would be to use a chelating resin that can remove the dissolved ions, but this would also increase cost (due to the addition of additional equipment) and cause the removal of chromium ions at the same time.
2,4-Dihydroxyacetophenone-dithiooxamide-formaldehyde terpolymer is an example of chelating resin functionalized with DTO and used for adsorption of Fe(III), Cu(II), Ni(II), Co(II), and Zn(II) ions [23], polystyrene-divinylbenzene functionalized with DTO has been used for removal of Cu(II), Zn(II), Cd(II), and Pb(II) ions [24], and DTO groups incorporated into a matrix of polystyrene-divinylbenzene have been used for Pd(II) adsorption [25], Dithiooxamide-formaldehyde (DTOF) chelating resin has been used for the adsorption of silver metal ion.
1989), or through capture of the positively charged unbound Al species on a cation-exchange or chelating resin (e.
A buffered sample is loaded onto a column packed with an appropriate cation exchange chelating resin.
During the past two decades, the use of chelating resin for metal ion preconcentration and separation has been considerably increased [l-5].
In this article, we synthesized a novel chelating resin containing both sulfur and nitrogen, porous crosslinked polystyrene immobilizing 2-amino pyridine via sulfur-containing spacer arm.
Chen and coworkers have reported the syntheses and applications in adsorption of noble metals of a series of chelating resin containing such functional groups as aminopyridine, 2-thiolbenzothiazole, 2-hydroxypyridine [14], N-methyl-2-thioimidzaole [19], etc.
Chelating resins are designed as useful sorbent resins for determining concentration of metal ions from different environmental samples (Bortoleto et al.
Ray, Synthesis and Metal Ion Uptake Studies of Chelating Resins Derived from Formaldehyde-Furfuraldehyde Condensed Phenolic Schiff Bases of 4, 4'-Diaminodiphenylether and o-Hydroxyacetophenone, Talanta, 57, 1075 (2002).
Ray, Synthesis and Metal Ion Uptake Studies of Chelating Resins Derived from Formaldehyde-Furfuraldehyde Condensed Phenolic Schiff Bases of 4, 4 '-Diaminodiphenylether and O-Hydroxyacetophenone, Talanta, 57, 1075 (2002).